What is the difference (besides the $$$) between 2 way and 3 way Cats?:confused:
T talonhead Registered User Oct 12, 2002 #1 What is the difference (besides the $$$) between 2 way and 3 way Cats?
Mike8675309 Registered User Oct 15, 2002 #2 A 3-Way catalyst can reduce NOx, CO, and HC. 2-Way catalysts reduce CO, VOC's and HC. Typically a EGR system is required if you run a 2-way catalyst, and often EGR is not required if you run a 3-way catalyst.
A 3-Way catalyst can reduce NOx, CO, and HC. 2-Way catalysts reduce CO, VOC's and HC. Typically a EGR system is required if you run a 2-way catalyst, and often EGR is not required if you run a 3-way catalyst.